JPH087191Y2 - Water stop - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water stop, and more specifically, water leaks from various pipes to a concrete pond or a water tank, and the outer circumference of a tubular sleeve through which these pipes are inserted. It relates to a waterproofing device that prevents water.

[0002]

2. Description of the Related Art As shown in FIGS. 7 to 10, conventionally, various pipes for concrete pools, ponds and water tanks, such as water supply 5a, drainage 5b, overflow 5c and water discharge 5d, are It was attached by the method of.

First, in order to form a wall having an arbitrary thickness on a side wall of a water tank or the like, the molds 1 and 1 are opposed to each other in parallel with a predetermined gap, and the pipes 5 are horizontally arranged in the molds 1 and 1. The iron pipe sleeve 3 having an inner diameter slightly larger than the outer circumference is inserted.

Next, after fixing the iron pipe sleeve 3 with the molds 1 and 1, concrete 4 is poured into the molds 1 and 1 while vibrating, and the concrete 4 is solidified. 1 is removed, and if there is concrete that has flowed into the iron pipe sleeve 3, this is removed, and the pipe 5 is inserted.

After that, the outer circumference of the pipe 5 and the iron pipe sleeve 3
Between the inner walls, the hemp thread 6 and the lead thread 7 are sequentially inserted by hand from the center toward the opening and sealed with resin 8 (FIG. 8).

However, the concrete 4 poured into the molds 1 and 1 often does not reach the outer periphery of the iron pipe sleeve 3 sufficiently, and a space 4'is formed below the outer periphery of the iron pipe sleeve 3. It happened, and water leaked inevitably through this void.

[0007] Further, since the manual filling of the hemp thread 6 or the like (caulking) is not always performed strictly, if the caulking is insufficient, water leakage occurs from here.

Therefore, as a conventional waterproofing tool, there has been proposed an iron pipe sleeve 9 with a collar, in which a collar 2 having a predetermined diameter is welded to the outer periphery of the iron pipe sleeve 3, and the collar 2 also extends below the outer periphery of the iron pipe sleeve 9. There is a concrete 4 that is made to spread sufficiently.

[0009]

As described in the above-mentioned section of the prior art, in the case of the iron pipe sleeve 9 with a flange in which the collar 2 having a predetermined diameter is welded to the outer circumference of the iron pipe sleeve, the wall thickness and the outer diameter of the pipe 5 are reduced. Prepare various kinds of iron pipe sleeves with different inner diameters according to the above, and collars 2 with different inner diameters according to the outer diameters of the iron pipe sleeves. Need to weld. However, since this work cannot be performed in the field in reality, it becomes a factory work, and the work of preparing a manufacturing drawing or the like for preparing the above-mentioned collared iron pipe sleeve 9 appropriately corresponding to the pipe 5 is complicated. However, it has a drawback that it takes a long time and the cost is extremely high. On the other hand, if the iron pipe sleeve 9 with a collar having a wide variety of inner diameters and lengths is prepared in advance to support work under all conditions, a wide storage space is required, and a great deal of labor is required for transportation. There are drawbacks.

In addition, in the conventional iron pipe sleeve 9 with a collar, in order to fill the gap between the iron pipe sleeve 9 with a collar and the pipe 5 and prevent water leakage, a hemp thread 6 and lead are manually produced by a skilled worker. Since caulking in which the yarn 7 and the resin 8 are packed is indispensable, if an unskilled person performs this work, the problem that water leakage from the portion due to caulking failure cannot be eliminated remains.

Further, the caulked hemp thread 6 and lead thread 7,
If the resin 8 deteriorates with the passage of time, it will cause water leakage from the gap between the annular sleeve 9 with a collar and the pipe 5.

Such a problem can be solved by providing a flange directly on the outer circumference of the pipe 5 and directly burying the pipe 5 in concrete.

However, the size of the pipe 5 is completely different depending on the purpose of installation, the place of installation, etc., and the material is iron, stainless steel, vinyl chloride, lining (the inside and outside of which is coated with synthetic resin), etc. Since there are various types, it is more difficult to carry out the work such as welding of the appropriate brim 2 in order to provide the brim on the outer periphery of the pipe 5 in the field work than providing the brim to the iron pipe sleeve 9. When manufactured, it had the same problem.

The present invention was developed in order to solve the problems and drawbacks of the above-mentioned prior art, and is extremely simple and can be manufactured and installed at low cost, and the pipe or the tubular pipe without a brim. An object of the present invention is to provide a water shut-off tool that can reliably prevent water leakage from the outer circumference of the sleeve.

[0015]

In order to achieve the above object, in a water stop device 10 of the present invention, a water supply / drainage 5a is inserted through a wall portion 23 such as an outer wall or a bottom wall of a concrete pool, pond or water tank. , 5b, pipes 5c for overflow, etc., and a water-stopper for preventing water leakage from the outer circumference of the pipe sleeve through which these pipes are inserted, have a circular insertion hole 17 (, 17) in the center, Hole 17 (, 1
7) bulging portion 33 (, 4 concentric with one side)
3) and a flat plate-shaped brim portion 32 (, 42) extending in the outer peripheral direction of the bulging portion 33 (, 43), and the outer edge of the brim portion 32 (, 42) and the bulging portion. 33 (, 43)
A groove 34 (, 44), 35 (, 45) communicating with the inside is formed by a reference line 19 extending the diameter of the circular insertion hole 17 (, 17) of the collar portion to the outer edge of the collar portion 32 (, 42). Two groove portions 34 (, 44), 35 (, 45) at symmetrical positions
To form the water-stopping tool half body 10a (, 10b). The two water-stopping tool half bodies 10a, 10b are formed into the groove portions 34, 35.
And the groove portions 44 and 45 are opposed to each other and overlapped, and the two bulging portions 33 and 43 are opposed to each other by the two pairs of the opposed groove portions 34, 44, 35 and 45.
An injection hole 14 for injecting a filler such as a filler or an adhesive that connects the void portion 13 formed inside and the outer edge of the collar portion 12 to each other.
And an air vent hole 15 is formed.

The water shut-off device 10 has a cylindrical sleeve portion 11 (31, 41) protruding from the inner edge of the insertion hole 17 (, 17) in the same direction as the bulging direction of the bulging portion in the water shut-off device half body. ) Can be provided.

Further, the injection hole 14 and the air vent hole 15
Are preferably arranged close to each other.

In addition, the pipe inserted into the insertion hole 17 is
It is possible to use either a pipe for water supply / drainage inserted into the wall portion 23, a pipe for overflow or the like, or a tubular pipe sleeve arranged on the outer periphery of the pipe.

[0019]

The above-mentioned waterproofing device 10 includes two waterproofing device halves 10a,
It is formed by superimposing 10b, and is a water-stopper half 1
2a of the groove 34, 35 formed in 0a, and the water stop half 1
The groove portions 44 and 45 formed in 0b are overlapped by facing and aligning with each other to form the water stopping tool 10 of 1.

Accordingly, the groove portion 34 of the water shut-off half body 10a and the groove portion 44 of the water shut-off half body 10b face each other to form the injection hole 14 for a filling material such as an adhesive, and the water shut-off half body 10a is filled. Groove 35
And the groove portion 45 of the water blocking tool half body 10b face each other to form the air vent hole 15.

Further, the bulging portions 33 and 43 formed on the respective water shutoff tool halves 10a and 10b face each other, and the bulging portion 3 is formed.
Voids 13 are formed in 3, 43. In this way, the injection hole 14 and the air vent hole 15 of the water shutoff tool 10 are formed by polymerizing the two water shutoff tool halves 10a and 10b, so that the injection hole 14 and the air vent hole 15 are formed by press molding or the like. It can be formed relatively easily by the means.

Insertion hole 1 of the water shut-off device 10 constructed in this way
Insert a short pipe 25 having an outer diameter equal to the inner diameter of the insertion hole 17 and having a joint connected to the rear end,
The pipe 25 inserted through the water shut-off device 10 is inserted through the holes formed in the form frames 26 and 27.

After that, when a filling material 21 such as an adhesive is injected through the injection hole 14 formed in the collar portion 12 of the water shut-off device 10, the filling material 21 is filled in the void portion 13 and the inside of the void portion 13 is filled. The air is discharged to the outside of the water blocking tool 10 through the air vent hole 15, and the water blocking tool 10 is fixed on the outer peripheral surface of the pipe 25.

The position of the pipe 25 is set to the formwork 26, 2
By fixing with 7 and injecting concrete between the formwork 26 and 27, a collar is formed on the outer periphery of the pipe 25 by the attachment of the water stop 10, and the pipe 25 does not form a void 4'on its outer periphery. It is embedded in concrete and can be used for plumbing without the need for caulking.

Further, instead of the pipe 25, an iron pipe sleeve 29 without a collar is fitted into the insertion hole 17 of the water stoppage tool 10 having the insertion hole 17 having an inner diameter corresponding to the outer diameter of the sleeve 29, and the water stoppage is achieved. The filling material 2 is introduced into the space 13 through the injection hole 14 of the tool 10.
If 1 is filled and constructed (FIG. 6), the brim can be easily attached to the outer circumference of the sleeve 29 by on-site work without welding work or the like, and then the construction is performed as usual and inserted into the iron pipe sleeve 29. Piping 25 and iron pipe sleeve 2
It suffices to perform sufficient caulking between 9 and the annular brim portion 12 of the water shut-off tool 10 can surely perform the water shut-off operation.

[0026]

EXAMPLES Examples will be described with reference to the drawings.
In FIGS. 1, 2 and 4, the water stop 10 is made of a material such as metal or plastic and has a circular insertion hole 1 in the center.
7, a bulging portion 33 bulged in opposite directions to each other concentrically with the insertion hole 17 and its center 18 in common.
43 and an annular flange portion 12 extending in the outer peripheral direction of the bulging portions 33, 43. Then, in the collar portion 12, a void portion 13 formed in a space defined by the bulging portions 17, 17 and from the void portion 13 to the collar portion 1
2, an injection hole 14 for injecting a filler such as a filler or an adhesive, which communicates with the outer periphery of 2, and an air vent hole 15 for releasing the air in the void portion 13 to the outside of the water stop 10 when injecting the filler.
Have respectively.

This water shut-off device 10 is one in which two water shut-off device halves 10a and 10b, which are independently formed, are polymerized to form one water shut-off device 10. In this embodiment, they are the same. Of two water-stopper halves 10a, 10b which are symmetrical in shape with each other when they are polymerized with each other
Are polymerized to form the water stopper 10.

Water-stopper half 10 constituting the water-stopper 10
The a and 10b are formed in the same shape as described above, and the water shut-off device half body (hereinafter,
This will be described based on the “left half”). The left half 10a has a circular insertion hole 17 into which the tube 20 can be inserted and inserted, and the periphery of the insertion hole 17 is A swelling portion 33 is formed by swelling in a truncated cone shape with a predetermined width.

Further, a flat plate disk-shaped collar portion 32 is formed on the outer periphery of the bulging portion 33, and the collar portion 32 is formed.
There are two groove portions 34, 35 forming a semi-circular groove having a semicircular cross section that communicates with the bulge portion 33 and the outer periphery of the collar portion 32, and the diameter of the insertion hole 17 is the outer edge of the collar portion 32. They are provided at symmetrical positions around the extended reference line 19 (FIG. 2).

In the left half body 10a thus constructed,
1 and 4 shown on the right side of the paper surface (hereinafter referred to as "right half body") 10b formed in the same shape, the groove portion 34 of the left half body 10a and the right half body 10b. The groove portion 44, the groove portion 35 of the left half body 10a and the groove portion 45 of the right half body 10b are positioned and symmetrically polymerized into two pieces, and the groove portion 34 and the groove portion 44 are integrated into a filler or an adhesive. In the injection hole 14 for injecting the filling material, the groove portion 35 and the groove portion 45 are integrated to form the air vent hole 15.

As shown in FIGS. 1 and 4, the bulging portions 33 and 43 may be linearly inclined in the cross section of the tube 20 in the axial direction, or may be curved.

Further, the shapes of the groove portions 34 and 44 forming the filling material injection hole 14 and the grooves 35 and 45 forming the air vent holes are not limited to the semicircular cross section.

As described above, in the waterproofing tool 10 formed by polymerizing the waterproofing tool halves 10a and 10b, the brim 32 of the left half 10a and the brim 42 of the right half 10b are integrated. Thus, the brim portion 12 of the water stoppage tool 10 is formed.

Also, in consideration of usability when fixing the water shut-off device 10 on the pipe 25, the cylindrical sleeve portion 11 (3) protruding toward the inner edge bulging portions 33, 43 of the insertion holes 17, 17 is formed.
1, 41) can also be provided. This sleeve part 11
(31, 41) are the left half 10a provided with the tubular sleeve portion 31 projecting from the inner edge of the insertion hole 17, and the right half provided with the tubular sleeve portion 41 projecting from the inner edge of the insertion hole 17. By forming the water blocking tool 10 by combining the half bodies 10b, the sleeve portions 11 are formed on both surfaces of the water blocking tool 10.

However, this sleeve portion 11 (31, 4
In 1), if the usability at the time of construction of the waterproofing tool 10 fixed to the outer periphery of the pipe 25 is not taken into consideration, this may not be provided as shown in FIG. The other configurations of the groove portions 34, 44 and the groove portions 35, 45 of the waterproofing device 10 shown in FIG. 5 are the same as those described in the above embodiment.

Further, the bulging portion 33 of the left half body 10a and the bulging portion 43 of the right half body 10b are joined at corresponding positions to form the void portion 13 in the bulging portions 33, 43.

The outer shapes of the flange portion 32 of the left half body 10a and the flange portion 42 of the right half body 10b which form the flange portion 12 are not limited to the shapes shown in FIG.

Further, the left half body 10a and the right half body 10b.
As shown in FIG. 2, the groove portions 34, 44 and the groove portions 35, 45 of the insertion hole 17 are symmetrically positioned with respect to a reference line 19 (see FIG. 2) extending the diameter of the insertion hole 17 toward the outer edges of the flange portions 32, 42. By providing and making the injection groove 34 and the air bleeding groove 35 have the same cross-sectional shape, the groove portions 34, 44 and the groove portions 35, 45 are formed.
Is a joining surface 36 of the left half 10a and the right half 10b,
They are arranged symmetrically with respect to 46. Therefore, the left half body 10a or the right half body 10b has the same shape, and the left half body 10a and the right half body 10b are brought into contact with each other at their respective joining surfaces as a set, and the left half body 32 or the right half body 10b is brought into contact with each other. The injection holes 14 and the air vent holes 15 are easily formed by joining the groove portions 34, 44 and 35, 45 of the half body 42 at corresponding positions.

In the construction, if necessary, the left half 32 and the right half 42 are clipped at, for example, two places on the outer edges thereof, and the filling material 21 is injected into the injection hole 14.

However, this sleeve portion 11 (31, 4
In 1), it is not necessary to provide this as shown in FIG. 5 unless the stability of the waterproofing device 10 fixed to the outer periphery of the pipe 25 is taken into consideration. In addition, the groove portions 34, 4 of the waterproofing device 10 shown in FIG.
Other configurations such as 4 and the groove portions 35 and 45 are the same as those described in the above embodiment.

Further, the left half body 10a and the right half body 1 are
The combination of 0b is the left half 10a with the sleeve portion 31 of FIG. 1 and the left half 10b without the sleeve of FIG.
Alternatively, the left half body 10a having no sleeve shown in FIG. 5 and the right half body 10b having a sleeve shown in FIG. 1 may be combined. As described above, by constructing the waterproofing device 10 by combining the waterproofing tool half body having the sleeve and the waterproofing tool half body having no sleeve, the waterproofing tool is adjusted to the thickness of the wall portion 23 to be piped. The length of the tool 10 can be arbitrarily adjusted as appropriate, and the water blocking tool 10 of the present application can be used under a wide range of conditions.

As shown in FIG. 1, the pipe 20 is inserted by press-fitting it into the insertion hole 17 of the water shut-off device 10 constructed as described above, and the filling material 21 is injected into the injection hole 14. As shown in FIG. 5, the filling material 21 is formed on the outer peripheral surface of the pipe 20 and the bulging portions 33, 4
3 is filled in the void portion 13 formed in
The air inside 3 is pushed out by the filling material 21 and the air vent hole 1
5 is discharged from the outer periphery of the collar portion 12 to the outside.

In FIG. 2, the void portion 13, that is, the bulging portions 33, 43 of the left and right water shutoff tool halves 10a, 10b.
Is formed in an endless annular shape, but it may not be an endless annular shape when the injection holes 14 and the air vent holes 15 are arranged close to each other. That is, the filler 21 injected from the injection hole 14 passes through the port 16 of the injection hole 14 that communicates with one end of the void portion 13, flows into the void portion 13 in the clockwise direction on the paper surface of FIG. It flows into the air vent hole 15 through the port 16 of the air vent hole 15 communicating with the other end. At this time, the insertion hole 17 of the waterproofing device 10 and the pipe 2
If the outer circumferences of 0 are closely fitted, the width is very small even if the port 16 of the injection hole 14 and the port 16 of the air vent hole 15 are not communicated with each other by the gap 13. Water leakage does not occur between the inner circumference of the insertion hole 17 between 16 and 16 and the outer circumference of the pipe 20.

On the contrary, even if there is a slight gap between the insertion hole 17 of the waterproofing device 10 and the outer circumference of the pipe 20, the ports 16 and 1
Since the distance between 6 is very small, the packing material 21 is
The water flows into the gap between the inner circumference of the collar 12 and the outer circumference of the pipe 20 between the nozzles 6, 16 and prevents this gap, which prevents water leakage.

Various materials can be used as the filling material 21, but when the pipe 20 is made of plastic such as vinyl chloride, the water shut-off device 10 is made of the same plastic as the pipe 20, and the filling material is made. If the adhesive for plastic is used as 21, the pipe 20 and the water stop 10 are adhered to form an integral structure, which is more effective in preventing water leakage.

Further, the pipe 20 is made of metal such as iron, and the water shut-off device 1
When 0 is made of metal or plastic, a filler such as resin can be used as the filling material 21.

As shown in FIG. 6, when the pipe 20 is a pipe sleeve 29 made of metal such as iron without a brim as described above, various pipes 25 for water supply and drainage are inserted into the pipe 20, and Caulking similar to the conventional means described above is performed between the outer circumference and the tube 20. On the other hand, as shown in FIG.
When forming a pipe 25 for direct water supply / drainage, a hole 28 is provided in the formwork 26 and / or 27, both ends of the pipe 20 are projected from this hole 28, and the pipe is formed by one and / or both formwork 26 and / or 27. 20 is fixed and concrete 23 is poured.
In this case, the pipe 20 is short so that the work is not complicated when removing the form 26 (27).
As long as joints are provided at both ends or one end, the final piping work will not be hindered.

In the case of the water stoppage tool 10 having the sleeve portion 11 (31, 41), as shown in FIG.
One and / or both ends of the sleeve portion 11 (31, 41) of the left sleeve portion 31 (and the right sleeve portion 4).
(1 end) and the outer circumference of the pipe 20 by wrapping and tightening a band 22 around the outer circumference of the pipe 20 to fasten the waterproofing device 10 to the pipe 20, and then injecting the filler 21 into the injection hole 14 of the waterproofing device 10. You can also However, since the water stopper 10 is made of plastic and the wall thickness of the sleeve portion 11 (the left sleeve portion 31 and / or the right sleeve portion 41) is thin, the sleeve portion 11 is easily attached by the tightening force of the band 22. If it is deformed and pressed against the outer periphery of the pipe 20, the band 22 may be wound around the sleeve portion 11 and tightened.
If the sleeve portion 11 is not easily pressed against the pipe 20 by the tightening force of the band 22 because the metal is made of iron or the like, the band 22 is connected to the sleeve portion 11 and the pipe 20 as described above.
Wrap it around the outer circumference of and tighten.

The caulking and other construction methods are carried out in the same manner as in the conventional means described above, except that the water shut-off device 10 having the insertion holes 17 of various inner diameters and the brim 12 of various outer diameters is prepared.
0 according to the outer diameter or wall thickness of the pipe 20 and the pipe 20 (2
The outer periphery of 5) may be fitted, and the filling 21 may be injected and filled into the space between the outer peripheral surface of the pipe 20 (25) and the space 13 through the injection hole 14 and fixed with a mold.

Also, when an iron pipe sleeve is used, iron pipes having various inner diameters and appropriate lengths are prepared, and the iron pipe sleeves are predetermined according to the distance between the molds 26 and 27, that is, the wall thickness and the outer diameter of the pipe 20 (25). The water stop tool 10 is selected, and the water stop tool 10 is fitted into the outer circumference of the iron pipe on site and the filling material 21 is filled.

Even when the pipe 20 is a lining pipe, it can be attached without any heat treatment such as welding when attaching the water stop 10, so that the pipe is not damaged.
As described above, if the water blocking tool 10 made of the same material as the pipe 20 is used and an adhesive is used as the filling material 21, it contributes to more effective water leakage prevention.

[0052]

[Effect] Since the present invention is configured as described above, it has the following effects.

(1) By inserting the pipe into the insertion hole, filling a filling material such as an adhesive through the injection hole and fixing the waterproofing device of the present invention to the outer periphery of the pipe, the outer periphery of the pipe can be relatively easily formed. Since the brim can be formed, the brim and sleeve are separated before construction, which is convenient for transportation, and is extremely easy and cost-effective to perform on-site work. The collar can be formed, and not only the iron pipe as the sleeve but also a plastic material such as vinyl chloride, which has good corrosion resistance and high workability, can be used, and the construction cost can be significantly reduced. It is possible.

(2) Since the tubular sleeve portion projecting from the inner edge of the insertion hole into which the pipe is freely inserted is provided, not only the fixing by the filling material such as the adhesive agent filled in the void portion, but also the stop of the present application. The water tool is also fixed by pressure contact between the inner peripheral surface of the tubular sleeve portion and the outer peripheral surface of the tube, and the tube and the water stop tool are more firmly fixed, and sufficient strength can be obtained.

(3) Since two waterproofing tool halves having the same shape are combined to form one waterproofing tool, the structure of each of the halves constituting the waterproofing tool is simple, the processability is good, and the cost is low. It is possible to provide a simple waterproofing device, and it is easy to carry.

(4) By constructing the water shut-off device by combining the two water shut-off device halves, the water shut-off device having no sleeve part and the sleeve part on only one side can be formed by combining the respective water shut-off device halves. Various water-stoppers, such as the formed water-stoppers and water-stoppers with sleeves formed on both sides, can be easily formed on site, depending on the construction site, the thickness of the side wall of the water tank, etc. It was possible to form an arbitrary waterproofing device as needed during on-site work.

(5) Since the two groove portions provided in each half of the waterproofing device are provided symmetrically with respect to the reference line extending the diameter of the insertion hole toward the outer edge of the collar portion, the stoppers having the same shape are formed. Since one water stop can be constructed by combining two water tool halves, the left and right halves can be manufactured at the same time and at low cost, and at the same time efficient sales, storage and transportation can be achieved. We were able to provide water equipment.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a working state of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a plan view of FIG.

4 is an exploded perspective view of FIG. 1. FIG.

FIG. 5 is a cross-sectional view of a working state of an embodiment different from FIG. 1 in the embodiment of the present invention.

FIG. 6 is a cross-sectional view of an embodiment of the present invention, which is different from FIGS. 1 and 5 in a construction state.

FIG. 7 is a schematic diagram showing various common pipes such as a pond and a pool.

FIG. 8 is a cross-sectional view showing a conventional technique and showing a construction state when an iron pipe sleeve without a collar is used.

FIG. 9 is a cross-sectional view showing a conventional technique and showing a construction state when an iron pipe sleeve with a collar is used.

FIG. 10 is a perspective view showing a conventional technique.

[Explanation of symbols]

 1 Formwork 2 Collar 3 Iron Pipe Sleeve 4 Concrete 5 Piping 6 Hemp Thread 7 Lead Thread 8 Resin 9 Iron Pipe Sleeve with Collar 10 Water Stoppers 10a, 10b Water Stopper Half 11 Sleeve Part 12 Collar Part (Water Stopper) 13 Void Part 14 Injection hole 15 Air vent hole 16 Port 17 Insertion hole 18 Center 19 Reference line 20 Tube 21 Filler 22 Band 23 Concrete 24 Wall section 25 Piping 26, 27 Formwork 28 Hole 29 Tube sleeve 31 Sleeve section (left half body) ) 32 Collar part (left half body) 33 Bulging part (left half body) 34 Groove part (for injection hole) 35 Groove part (for air vent hole) 36 Joining surface (left half part) 41 Sleeve part ( Right half half) 42 Collar part (right half half) 43 Swelling part (right half half) 44 Groove part (for injection hole) 45 Groove part (for air vent hole) 46 Joining surface (right half part) )

Claims (4)

[Scope of utility model registration request] 1. A pipe for water supply / drainage, overflow, etc., which is inserted through a wall portion such as an outer wall or a bottom wall of a concrete pool, pond or water tank , and these pipes are inserted therein.
A waterproofing device that prevents water leakage from the outer periphery of the pipe sleeve that has a circular insertion hole in the center and is concentric with this insertion hole on one side.
A bulge that has been formed and extends in the outer peripheral direction of this bulge.
And a flat plate-shaped collar portion, and two groove portions that communicate the outer edge of the collar portion with the inside of the bulging portion.
Is a standard in which the diameter of the circular insertion hole is extended to the outer edge of the collar.
Form at the symmetrical position of the line,
Form, the half 2 Like this water stopping member, and polymerized to face the groove,
Void formed in the bulge by two sets of facing grooves
A water blocking tool, characterized in that an injection hole for injecting a filler such as a filler or an adhesive, which communicates the outer edge of the collar portion with the outer edge of the collar portion, and an air vent hole are formed. 2. The water blocking tool half body is expanded from the inner edge of the insertion hole.
Use a cylindrical sleeve that projects in the same direction as the bulging direction
The water stop implement according to claim 1, wherein the water stop implement is provided. 3. The injection hole and the air vent hole are arranged close to each other.
The water stop according to claim 1 or 2, characterized in that
Ingredient 4. A pipe inserted into the insertion hole is inserted into the wall portion.
Pipes for water supply / drainage, overflow, etc. or outside the pipes
4. A tubular sleeve provided around the circumference of the tubular sleeve.
The water stop according to any one of claims.